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经营范围
发明名称
AUTOMATIC PRIVATE BRANCH EXCHANGE
摘要
申请公布号
JPH0746317(A)
申请公布日期
1995.02.14
申请号
JP19930188381
申请日期
1993.07.29
申请人
NEC CORP
发明人
NISHIDATE YOSHIO
分类号
H04M3/42;H04Q3/58;(IPC1-7):H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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